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公开(公告)号:US2652161A
公开(公告)日:1953-09-15
申请号:US14251850
申请日:1950-02-04
Applicant: RICHARD STERN A
Inventor: HERZIG LEONARD A , MARTIN COAN
公开(公告)号:US2652161A
公开(公告)日:1953-09-15
申请号:US14251850
申请日:1950-02-04
Applicant: RICHARD STERN A
Inventor: HERZIG LEONARD A , MARTIN COAN